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A visual cryptography scheme (VCS) can be realized by Boolean operations OR and XOR, respectively. The monotone property of OR operation reduces the visual quality of recovered image. To overcome this problem, some advanced XOR based VCSs (VCSXOR) were further designed to provide some favorable features such as high contrast and good resolution. However, they are all confined to non-strong access...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.